Instructions for LTD1220D duo solar controller

[Mixchief]

Good evening

I have lost my instruction/user manual for my dual solar battery controller LTD1220D model type. I have searched the net to no avail, found similar models but not the exact one I have.
The one I have you cannot change the battery type.

If anyone has a copy could you please send me a photo or scan of it please.

I have attached a picture of the controller as it might be sold with different part numbers.

Many thanks in advance.

 

[SteveJ]

That looks like the old controller that was fitted to our MH when we brought it. Pretty sure there was a manual for it. I'll have a dig around as I'm pretty sure I will still have it if there was.

 

[Mixchief]

Hi Steve

That would be fab if you could find it. I’m pretty sure the set button selects the charge priority/level before starting to deliver charge to the second battery.

Kind regards

Paul

 

[SteveJ]

Found it, it is exactly the model you have listed, manual isn't exactly comprehensive, it does say that the battery type and parameter settings are configurable for Sealed, Opening and Gel lead-acid batteries, but doesn't really mention how. I'll scan it and upload it for you.

 

[Mixchief]

What a Gent, many thanks Steve.
From memory it’s was poorly translated from Chinese, but better than no info.

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[SteveJ]

https://www.motorhomefun.co.uk/foru...dual-cell-solar-charge-controller-manual.325/

 

[SteveJ]

Hi Steve

Many thanks, for some reason maybe because I've only just registered yesterday, I have no permission to download.

Not sure why you can't download but could be that as a new member there are some permissions that haven't updated yet. Message me your email address and I'll mail the files to you, only 4 pages and less than 1Mb.

 

[Mixchief]

Hi Steve, Is there a methd of sending a private message or do I have to reply in this thread to give you my email addy?

 

[Mixchief]

Hi Steve

Many thanks all sorted managed to download manual now.

Very much appreciated

Kind regards

Paul

 

[SteveJ]

Hi Paul,
glad it's sorted, for future reference if you wish to PM another member click on the envelope symbol next to your userID on the top of the page.

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[waigy]

I'd also like this manual, but also can't find out how to message or download as a new member.

 

[GeoffnDee]

It is on page 2 of the Manuals for Motorhome stuff section of resources , which can be found in the menu .

 

[waigy]

Thanks GeoffnDee, I still have no permission to download being a new member.
I only want to know what settings I can change with the set button.
I've found similar dual battery controllers that have 3 leds for setting different battery type/charge priority/pwm frequency, but my one has no leds and only has "Charge priority" next to the display.
So it looks like you can only choose charge priority between battery 1 and 2 with this model.

 

[GeoffnDee]

waigy ,The instructions are very poor and limited but I think that a long press on the button will put it into some sort of setting for altering 10% and 90% charging between the batteries , not sure how , and another long press will exit this setting (sorry if this is not much help)

 

[waigy]

Yes that's the only setting I was able to change.
A long press and the number flashes then single presses change it from 10 up to 90.
I set it to 90, but I'm only using one battery connected to the battery 1 input so I assume it will give that 100%.
And it looks like you can't change anything else.

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